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    <meta charset="utf-8">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Hello World!</title>
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<b>普通 String 展示: </b><br/>
Hello ${name} <br/>

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<b>对象Student 中的数据展示: </b><br/>
姓名: ${stu.name} <br/>
年龄: ${stu.age}

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